EP0349957B1 - Méthode de fabrication de boîtier de raccordement électrique - Google Patents

Méthode de fabrication de boîtier de raccordement électrique Download PDF

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Publication number
EP0349957B1
EP0349957B1 EP89112123A EP89112123A EP0349957B1 EP 0349957 B1 EP0349957 B1 EP 0349957B1 EP 89112123 A EP89112123 A EP 89112123A EP 89112123 A EP89112123 A EP 89112123A EP 0349957 B1 EP0349957 B1 EP 0349957B1
Authority
EP
European Patent Office
Prior art keywords
circuits
junction box
electrical
electrical junction
printed circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89112123A
Other languages
German (de)
English (en)
Other versions
EP0349957A2 (fr
EP0349957A3 (fr
Inventor
Masahiro C/O Yazaki Parts Co. Ltd. Suguro
Tatsumi C/O Yazaki Parts Co. Ltd. Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Publication of EP0349957A2 publication Critical patent/EP0349957A2/fr
Publication of EP0349957A3 publication Critical patent/EP0349957A3/fr
Application granted granted Critical
Publication of EP0349957B1 publication Critical patent/EP0349957B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/026—Multiple connections subassemblies
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate

Definitions

  • the invention relates to a method for manufacturing an electrical junction box for use in connection of wirings and circuits for electrical parts in an automobile.
  • Fig.5 is a perspective view of a conventional electrical junction box as partly broken away
  • Fig.6 is a vertical sectional view of a part of the electrical junction box shown in Fig.5.
  • the electrical junction box includes an upper case 1 and a lower case 2 to be fitted with each other.
  • a stacked wiring board 5 formed by alternately stacking a plurality of bus bars 3 each having a desired pattern and a plurality of electrical insulating boards 4.
  • a plurality of tab-like connection terminals 6 are formed by bending the bus bars 3 upwardly or downwardly.
  • connection terminals 6 project into connecting portions for various electrical parts such as connector receiving portions 7 and fuse receiving portions 8 provided on the upper case 1 or the lower case 2.
  • An end connector 9 of a wire harness W is received into each connector receiving portion 7, and a fuse 10 is also received into each fuse receiving portion 8, so as to connect the end connector 9 and the fuse 10 with the connection terminals 6.
  • the bus bars 3 and the connection terminals 6 are formed by punching and bending a sheet metal in such a manner that different circuit patterns are formed according to destination, kind and grade of the automobile. That is, the bus bars 3 are manufactured to provide a dedicated circuit.
  • bus bars 3 are provided on the electrical insulating board 4, and these elements are stacked, it is necessary to ensure a spacing of at least 1.5 - 2 mm between the adjacent bus bars 3 on the same layer, and a plurality of ribs 4a for fixing the bus bars 3 are provided as required to avoid contact of the adjacent bus bars 3 on the same layer.
  • the conventional bus bars naving a stacked structure causes an increase in the number of parts, complication of the assembling operation, and an increase in manufacturing cost of a die.
  • US-A-4 599 680 discloses a packaging arrangement for a spacecraft computer comprising a heat conductive plane located between chips and a printed circuit board.
  • the heat conductive plane has a plurality of slots through which the leads of the integrated circuit chips can freely pass in order to engage holes in the printed circuit board, electrically connecting printed circuit wires with the leads of the integrated circuit chips.
  • the integrated circuit board has "built-up portions.” These portions may be playing a role of insulation and adhesion using an exopy resin, and the built-up portions are for covering the wire-distributed circuit board.
  • US-A-4 689 718 discloses an automobile junction box comprising printed circuit boards for receiving electrical components and having receptacles for receiving tabs depending from an elongated member.
  • the tabs connect the circuit pathways wirings of the printed circuit boards corresponding to vehicle options.
  • the selected circuit pathways may be modified by the inclusion of a second set of receptacles on the printed circuit boards for receiving electrical components such as diodes, resistors, zener diodes and the like.
  • an electrical junction box for connecting thereto a fuse, relay, unit connector, etc., comprising a metal backed printed circuit board formed by printing a plurality of circuits each having a desired pattern on a heat conductive electrical insulating layer supported to a metal substrate having a high coefficient of thermal conductivity such as aluminum.
  • the circuits are covered with an electrical insulating resist layer, and fixed to the circuits by soldering or the like a plurality of connection terminals for connecting electrical components of the type including a fuse, relay, and a unit connector thereto.
  • the metal backed printed circuit board is disposed in a case which is part of the electrical junction box.
  • the case is provided with connecting portions for connecting a plurality of electrical components of the type including a fuse and a relay thereto.
  • the wiring circuit in the electrical junction box is formed from the metal backed printed circuit buard. Therefore, a degree of freedom of the circuit width may be enlarged to thereby enable the use of an optimum pattern width. Further, a spacing between the adjacent circuits may be reduced to thereby enable the high-density formation of the circuits and the compact construction of the electrical junction box. In association with this, a change in circuitry may be easily carried out. Furthermore, the heat conductivity in the electrical junction box is improved, and the effect of radiation to the ambient air and the vehicle body may be therefore improved. In addition, the number of parts may be reduced to thereby simplify the assembling operation and reduce the cost.
  • reference numeral 11 designates a case of an electrical junction box A.
  • the case 11 is formed on its upper wall with a plurality of relay connecting portions 12 for connecting thereto a plurality of relays 14 and with a plurality of fuse connecting portions 13 for connecting thereto a plurality of fuses 15. Further. the case 11 is formed on its side wall with a card edge type connector housing 16 for connecting thereto an end connector 17 of a wire harness W.
  • Reference numeral 18 generally designates a metal backed printed circuit board formed by printing a plurality of circuits 21 each having a desired pattern on a heat conductive electrical insulating layer 20 such as an epoxy resin film or a mixed film containing an inorganic filler in such a resin.
  • the heat conductive electrical insulating layer 20 is supported on a metal substrate 19 such as an aluminum substrate having a high heat conductivity.
  • the circuits 21 are covered with an electrical insulating resist layer 20'.
  • Each of the circuits 21 is formed at its end or intermediate portion with a rectangular terminal connecting portion 21a.
  • various types connection terminals 22, 22', 22", 22′′′ have respective rectangular base plate portions 22a to be fixed by soldering or the like to the corresponding terminal connecting portions 21a of the circuits 21.
  • These connection terminals are located in alignment with the relay connecting portions 12 and the fuse connecting portions 13.
  • connection terminals 22 and 22′ has the base plate portion 22a, an upright plate portion 22b extending upwardly from the base plate portion 22a and a pair of elastic curled arms 22c formed at an upper end of the upright plate portion 22b, so that a tab-like male terminal such as the fuse 15 is inserted between the arms 22c and the upright plate portion 22b.
  • the connection terminal 22" has the base plate portion 22a, the upright plate portion 22b, a pair of opposed elastic side plate portions 22f and another side plate portion 22e split from the side plate portions 22f by a pair of slits 22d, so that the aforementioned male terminal is inserted into the slits 22d.
  • the connection terminal 22′′′ is a modification of the connection terminal 22 ⁇ as formed by omitting one of the side plate portions 22f.
  • each base plate portion 22a of the connection terminals 22 - 22′′′ is preferably formed with a positioning recess 22g
  • the corresponding terminal connecting portion 21a of each circuit 21 is preferably formed with a projection 21b to be engaged with the positioning recess 22g of the base plate portion 22a, so that the direction of insertion of the male terminal may be made coincide with that of the connection terminal.
  • the projection 21b may be formed on the base plate portion 22a of the connection terminal 22 - 22′′′, and the positioning recess 22g may be formed on the terminal connecting portion 21a of the circuit 21.
  • the metal backed printed circuit board 18 is integrally formed with a side projecting portion 23 on which a plurality of extended portions 21' of the circuits 21 are arranged in parallel.
  • the side projecting portion 23 projects into the connector housing 16, so that the extended portions 21' of the circuits may be directly connected with connection terminals (not shown) in the end connector 17.
  • the metal backed printed circuit board 18 is disposed in the electrical junction box A. and the printed circuit board 18 is constructed of the heat conductive metal substrate 19, the heat conductive electrical insulating layer 20 formed on the metal substrate 19, the circuits 21 printed on the electrical insulating layer 20, and the electrical insulating resist layer 20' covering the circuits 21.
  • the printed circuit board 18 in itself is improved in heat conductivity such that the distance from a heat generating portion (the circuits 21) to a heat radiating portion (the metal substrate 19) is short to thereby improve the effect of radiation to the ambient air and the vehicle body.
  • circuits 21 are easily formed by a known printing method, a change in the circuitry may be easily carried out, and a manufacturing cost may be more greatly reduced as compared with the prior art using a die and a device for punching and bending a sheet metal for the formation of the bus bars.
  • a width of each circuit 21 may be made minimum so as to allow the circuit 21 to be applied as a small-current circuit such as a signal circuit.
  • the spacing between the adjacent circuits 21 may be made small.
  • the circuit construction may be formed With a high density.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)

Claims (2)

  1. Procédé de fabrication d'une boîte de raccordement électrique (A) destinée à connecter à celle-ci des composants électriques du type comportant un fusible (15), un relais (14) et un connecteur d'éléments (17), comportant une carte de circuit imprimé à dos métallique (18), formé par:
    la mise en oeuvre d'un substrat métallique (19) possédant un coefficient élevé de conductibilité thermique tel que l'aluminium;
    la formation d'une couche électriquement isolante, conductrice de la chaleur (20) sur ledit substrat métallique (19);
    l'impression d'une pluralité de circuits (21) sur ladite couche électriquement isolante, conductrice de la chaleur (20), chacun de ladite pluralité de circuits (21) ayant une configuration souhaitée;
    la couverture desdits circuits (21) par une couche de vernis photosensible, électriquement isolant (20') et la fixation auxdits circuits (21), par brasure ou par un procédé analogue, d'une pluralité de bornes de connexion (22, 22', 22", 22‴) destinées à leur connecter une pluralité de composants électriques (14, 15, 17) dudit type, et
    la mise en place de ladite carte de circuit imprimé à dos métallique (18) dans un boîtier (11) faisant partie de ladite boîte de raccordement électrique (A), ledit boîtier étant pourvu de parties connectantes (12, 13) destinées à lui connecter une pluralité de composants électriques (14, 15, 17) du type comportant un fusible et un relais, et un logement (16) de connecteur du type de bord de carte, destiné à lui connecter un connecteur d'extrémité (17).
  2. Procédé selon la revendication 1, dans lequel chacune desdites bornes de connexion (22, 22', 22", 22‴) possède une partie plaque de base (22a) et chacun desdits circuits (21) possède une partie (21a) connectant les bornes qui doit être fixée à ladite partie plaque de base (22a), cette partie plaque de base (22a) étant formée d'un élément de l'ensemble saillie (21b) déterminant une direction et encoche de positionnement (22g) à mettre en prise avec ladite saillie (21b) et ladite partie (21a) connectant les bornes étant formée de l'autre élément de l'ensemble de ladite sailie (21b) déterminant une direction et de ladite encoche de positionnement (22g) à mettre en prise avec ladite projection (21b).
EP89112123A 1988-07-05 1989-07-03 Méthode de fabrication de boîtier de raccordement électrique Expired - Lifetime EP0349957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63165999A JPH0217818A (ja) 1988-07-05 1988-07-05 電気接続箱
JP165999/88 1988-07-05

Publications (3)

Publication Number Publication Date
EP0349957A2 EP0349957A2 (fr) 1990-01-10
EP0349957A3 EP0349957A3 (fr) 1990-02-28
EP0349957B1 true EP0349957B1 (fr) 1996-10-09

Family

ID=15822996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112123A Expired - Lifetime EP0349957B1 (fr) 1988-07-05 1989-07-03 Méthode de fabrication de boîtier de raccordement électrique

Country Status (4)

Country Link
US (1) US4972295A (fr)
EP (1) EP0349957B1 (fr)
JP (1) JPH0217818A (fr)
DE (1) DE68927314T2 (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004127A1 (de) * 1990-02-10 1991-08-14 Ego Elektro Blanc & Fischer Anschlussverteiler, insbesondere fuer elektrische waermegeraete
DE9001828U1 (de) * 1990-02-16 1990-05-10 Ott, Reinhold, 70565 Stuttgart Zentraleinheit für eine Diebstahlsicherungsanlage
JPH0447331U (fr) * 1990-08-22 1992-04-22
US5179503A (en) * 1991-04-19 1993-01-12 United Technologies Automotive, Inc. Modular automobile power distribution box
JPH04137431U (ja) * 1991-06-10 1992-12-22 古河電気工業株式会社 電気接続箱
JP2752010B2 (ja) * 1991-06-25 1998-05-18 矢崎総業株式会社 電気接続箱
JP2765286B2 (ja) * 1991-07-31 1998-06-11 住友電装株式会社 カード式ジャンクションボックス
JP3107113B2 (ja) * 1992-06-09 2000-11-06 矢崎総業株式会社 電気接続箱
US5476395A (en) * 1993-03-01 1995-12-19 Methode Electronics, Inc. Planar fuse panel
JP2570358Y2 (ja) * 1993-04-14 1998-05-06 矢崎総業株式会社 電気接続箱
JP3006654B2 (ja) * 1994-05-19 2000-02-07 矢崎総業株式会社 メータモジュール組立体
JP3052843B2 (ja) * 1996-07-03 2000-06-19 住友電装株式会社 電気接続箱
JP3501906B2 (ja) * 1996-09-17 2004-03-02 株式会社オートネットワーク技術研究所 電気接続装置
US5955960A (en) * 1997-03-24 1999-09-21 Jean-Luc Monnier Tamper resistant electronic lock and method of using same
DE69812774T2 (de) * 1997-05-28 2003-10-16 Autonetworks Technologies, Ltd. Sammelschienenstruktur
WO1999053585A1 (fr) * 1998-04-09 1999-10-21 The Furukawa Electric Co., Ltd. Boite de raccordement
JP3785276B2 (ja) * 1998-09-10 2006-06-14 矢崎総業株式会社 電気接続箱
US6267630B1 (en) * 1999-08-04 2001-07-31 Antaya Technologies Corporation Circular connector with blade terminal
ES2160065B1 (es) * 1999-08-09 2003-04-01 Mecanismos Aux Es Ind S L Caja de interconexiones para automovil con disipacion termica mejorada.
JP4674930B2 (ja) * 1999-12-24 2011-04-20 矢崎総業株式会社 電気接続箱
JP4274528B2 (ja) * 2003-04-28 2009-06-10 協伸工業株式会社 タブ端子
JP3744531B1 (ja) * 2004-05-07 2006-02-15 住友電装株式会社 太陽電池モジュール用端子ボックス及び整流素子ユニット
JP3767618B2 (ja) * 2004-08-19 2006-04-19 住友電装株式会社 太陽電池モジュール用端子ボックス
EP1865758B1 (fr) * 2005-03-28 2015-05-13 The Furukawa Electric Co., Ltd. Structure de renfort d'un substrat à c ur métallique et boîtier de connexion électrique
US7355502B1 (en) * 2005-06-28 2008-04-08 Yazaki North America, Inc. Direct relay connection to a fusible link
US7983024B2 (en) * 2007-04-24 2011-07-19 Littelfuse, Inc. Fuse card system for automotive circuit protection
US7561430B2 (en) * 2007-04-30 2009-07-14 Watlow Electric Manufacturing Company Heat management system for a power switching device
JP5842760B2 (ja) * 2012-08-01 2016-01-13 株式会社オートネットワーク技術研究所 電気接続箱
EP3557602B1 (fr) * 2016-12-15 2024-04-24 Amogreentech Co., Ltd. Ensemble de relais de puissance
JP6596046B2 (ja) 2017-08-30 2019-10-23 矢崎総業株式会社 電気接続箱

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JPS553888B1 (fr) * 1970-05-23 1980-01-28
DE3377194D1 (en) * 1982-04-15 1988-07-28 Sumitomo Wiring Systems Electrical junction system
US4599680A (en) * 1983-09-26 1986-07-08 Southwest Research Institute Packaging arrangement for spacecraft computer
DE3439410A1 (de) * 1984-10-27 1986-04-30 Stribel GmbH, 7443 Frickenhausen Einrichtung fuer ein kraftfahrzeug
DE3604882A1 (de) * 1986-02-15 1987-08-20 Bbc Brown Boveri & Cie Leistungshalbleitermodul und verfahren zur herstellung des moduls
US4689718A (en) * 1986-04-04 1987-08-25 United Technologies Automotive, Inc. Programmable junction box

Non-Patent Citations (2)

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G. Leonida "Handbook of Printed Circuit Design, Manufacture, Components & Assembly", 1981 reprinted 1982, Electrochemical Publications Limited, Ayr, Scotland, pp 250-251 *
J.A. Scarlett "The Multilayer Printed Circuit Board Handbook", 1985,Electrochemical Publications Limited, Ayr, Scotland, pp 569-570 *

Also Published As

Publication number Publication date
US4972295A (en) 1990-11-20
JPH0217818A (ja) 1990-01-22
EP0349957A2 (fr) 1990-01-10
DE68927314T2 (de) 1997-02-20
EP0349957A3 (fr) 1990-02-28
DE68927314D1 (de) 1996-11-14

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